Packaging box



FIG. 1 is a perspective view of a packaging box according to the present invention; and,

FIG. 2 is a front view of the packaging box of FIG. 1.

Rear, left side, right side, top, and bottom views thereof are omitted since they do not contain ornamental features.

The broken lines are for the purpose of illustrating structural environment and form no part of the claimed design. 

CLAIM The ornamental design for a packaging box, as shown and described. 